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Waves are everywhere in nature
Sound waves visible light
wavesradio wavesmicrowaveswater waves
telephone chord waves
stadium waves earthquake
waves waves on a
stringslinky waves
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What is a wave?
A wave is a disturbance (source of energy) that travels through a medium from one location to another.
A wave is the motion of a disturbance
Waves transfer energy not matter. The water waves below are carrying energy but are not moving. Waves can only exist as they have energy to carry.
Mechanical Waves
Waves that require a medium to pass through.
A medium is a material through which waves can passGases (air)Liquids (water)Solids (ropes)
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Transverse Waves
A disturbance that is perpendicular to the direction of the wave
Ex. Moving a rope up and down.
disturbance
wave direction
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Longitudinal (Compression) Wave
The disturbance is parallel to the direction of the wave travel. Ex. Spring toy or SLINKY!
Compression-the coils come together
Rarefaction- the coils spread out
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Crest and Trough
Crest-The highest part of a transverse wave
Trough- The lowest part of a transverse wave
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Amplitude- Longitudinal WaveDepends on how dense (bunched) the
medium is at each compression.Coiled spring A has the greater
amplitude.
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FrequencyThe number of complete waves that pass
a given point in a certain amount of time.Measured in hertz (Hz)
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HIGH Frequency
LOW Frequency
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